Scientific Notation - Adding and Subtracting Word Problems and Practice Included in this packet: 1. Common Core Alignment including Standards for Mathematical Practices 2. 10 word problems requiring adding and subtracting numbers represented in scientific notation to solve 3. The same 10 word problems in multiple choice format (great for students that require modification!) 4. The same 10 word problems in a format to use with COLORING PAGES just find a coloring page numbered 1-10 you can check the answers quickly by ensuring that the colors are all correct 5. 20 adding and subtracting scientific notation problems (this is provided on two sheets one that is numbered 11-30 and is meant to be an extension of the word problems could even be printed on the back of the page and one that is numbered 1-20 for use by itself). 6. Task cards for the 10 word problems and individual small cards with the 20 calculation problems 7. Solutions for all 30 problems. Common Core Alignment: CCSS.Math.Content.8.EE.A.3 Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities, and to express how many times as much one is than the other. For example, estimate the population of the United States as 3 times 10 8 and the population of the world as 7 times 10 9, and determine that the world population is more than 20 times larger. CCSS.Math.Content.8.EE.A.4 Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e.g., use millimeters per year for seafloor spreading). Interpret scientific notation that has been generated by technology. Standards for Mathematical Practices CCSS.Math.Practice.MP1 Make sense of problems and persevere in solving them. CCSS.Math.Practice.MP2 Reason abstractly and quantitatively. CCSS.Math.Practice.MP5 Use appropriate tools strategically. CCSS.Math.Practice.MP6 Attend to precision.
Scientific Notation - Adding and Subtracting Word Problems and Practice Name: Date: Class Period: Express all answers in Scientific Notation. Most statistics given are purely fictional. 1. Bubba s Boot Barn is a favorite stop of visitors to Nashville s downtown shopping area. Last year, 2.42 x 10 5 people visited Bubba s. This year it has become an even more popular venue, with 2.53 x 10 6 visitors. How many more visitors have been to Bubba s this year than last year? 2. Jilly Johnson is a fantastic jelly-band bracelet maker. Jilly used 3.73 x 10 3 bands last month and this month she used 2.87 x 10 3 bands. How many total bands has she used in the past months? 3. 4.78 x 10 6 was the largest attendance record of the Polar Bear Express Chilly Football Extravaganza. 3.98 x 10 6 attended at the last PB Express event. How many more people were in attendance on the record-setting day? 4. Jupiter, the largest planet, has a diameter of about 8.8 x 10 4 miles. Mercury has a diameter of about 3.0 x 10 3. What is the difference in their diameters? 5. There are a LOT of lakes in the mid-state area. The level of Lookout Lake is 4.056 x 10 5 feet above sea level. The level of Lockdown Lake is only 3.85 x 10 4 feet above sea level. How much higher in altitude is Lookout Lake than Lockdown Lake? 6. In 2009 there were 2.35 x 10 6 ferrets kept as pets in India. At the same time there were 3.43 x 10 5 ferrets kept as pets in France. How many pet ferrets were in there in total in those two countries? 7. A very small but volatile bacteria takes up 1.78 x 10-2 square inches of space on the rail of a front porch. A worker cleaning the rail sprays 3.45 x 10 3 square inches of bleach cleaner over the bacteria area. How much more space did the cleaning spray encompass than the bacteria? 8. Bubba and Fred are having a bubble-blowing contest. The diameter of Bubba s bubble is 2.45 x 10-2 feet. Fred s bubble is 3.67 x 10-2 feet. What is the difference in the diameter of their bubbles? 9. The biggest bowl of mashed potatoes ever made weighed 4.56 x 10 4 pounds and was created at the Iowa State Fair in 2005. The biggest deep dish pizza ever made was in Chicago in 1998. It weighed a whopping 1.23 x 10 5 pounds. How much more did the pizza weigh than the bowl of mashed taters? 10. An ant carries a spec of food to his home that is 2.34x10-3 inches. His wife carries a piece that is 4.56x10-2. How big are their pieces of food combined?
Scientific Notation - Adding and Subtracting Practice Name: Date: Class Period: 11. (5.2 x 10 4 ) + (2.5 x 10 3 ) = 12. (1.8 x 10 6 ) (7.5 x 10 2 ) = 13. (2.7 x 10 2 ) + (3.2 x 10 4 ) = 14. (8.5 x 10 3 ) (2.5 x 10-2 ) = 15. (4.84 x 10-11 ) (8.8 x 10 4 ) = 16. (2.2 x 10 2 ) + (6.52 x 10 3 ) = 17. (8.9 x 10-7 ) + (3.2 x 10 17 ) = 18. (1.2 x 10 9 ) (7.77 x 10 12 ) = 19. (6.4 x 10-3 ) (2.5 x 10 3 ) = 20. (4.3 x 10-4 ) + (3.6 x 10-3 ) = 21. (2.89 x 10 2 ) (3.4 x 10-2 ) = 22. (2.07 x 10-2 ) + (8.98 x 10-3 ) = 23. (2.5 x 10 9 ) (8.04 x 10-2 ) = 24. (2 x 10-3 ) (9.8 x 10-6 ) = 25. (5.38 x 10-4 ) + (5.83 x 10-4 ) = 26. (6.07 x 10-2 ) + (3.305 x 10-3 ) = 27. (1.2 x 10 9 ) (1.2 x 10 8 ) = 28. (9.76 x 10 14 ) + (8.07 x 10 10 ) = 29. (2.795 X 10 9 ) + (3.84 X 10 8 ) = 30. (6.995 X 10 6 ) (6.378 X 10 4 ) =
Scientific Notation - Adding and Subtracting Practice Name: Date: Class Period: 1. (5.2 x 10 4 ) + (2.5 x 10 3 ) = 2. (1.8 x 10 6 ) (7.5 x 10 2 ) = 3. (2.7 x 10 2 ) + (3.2 x 10 4 ) = 4. (8.5 x 10 3 ) (2.5 x 10-2 ) = 5. (4.84 x 10-11 ) (8.8 x 10 4 ) = 6. (2.2 x 10 2 ) + (6.52 x 10 3 ) = 7. (8.9 x 10-7 ) + (3.2 x 10 17 ) = 8. (1.2 x 10 9 ) (7.77 x 10 12 ) = 9. (6.4 x 10-3 ) (2.5 x 10 3 ) = 10. (4.3 x 10-4 ) + (3.6 x 10-3 ) = 11. (2.89 x 10 2 ) (3.4 x 10-2 ) = 12. (2.07 x 10-2 ) + (8.98 x 10-3 ) = 13. (2.5 x 10 9 ) (8.04 x 10-2 ) = 14. (2 x 10-3 ) (9.8 x 10-6 ) = 15. (5.38 x 10-4 ) + (5.83 x 10-4 ) = 16. (6.07 x 10-2 ) + (3.305 x 10-3 ) = 17. (1.2 x 10 9 ) (1.2 x 10 8 ) = 18. (9.76 x 10 14 ) + (8.07 x 10 10 ) = 19. (2.795 X 10 9 ) + (3.84 X 10 8 ) = 20. (6.995 X 10 6 ) (6.378 X 10 4 ) =
Scientific Notation - Adding and Subtracting Practice Multiple Choice 1. Bubba s Boot Barn is a favorite stop of visitors to Nashville s downtown shopping area. Last year, 2.42 x 10 5 people visited Bubba s. This year it has become an even more popular venue, with 2.53 x 10 6 visitors. How many more visitors have been to Bubba s this year than last year? A 2.75 x 10 6 B 2.288 x 10 6 C 6.1226 x 10 11 D 9.5652 x 10-2 2. Jilly Johnson is a fantastic jelly-band bracelet maker. Jilly used 3.73 x 10 3 bands last month and this month she used 2.87 x 10 3 bands. How many total bands has she used in the past months? A 6.6 x 10 3 B 8.6 x 10 2 C 1.07051 x 10 7 D 1.29965 x 10 0 3. 4.78 x 10 6 was the largest attendance record of the Polar Bear Express Chilly Football Extravaganza. 3.98 x 10 6 attended at the last PB Express event. How many more people were in attendance on the record-setting day? A 8.76 x 10 6 B 1.90244 x 10 13 C 8 x 10 4 D 8 x 10 5 4. Jupiter, the largest planet, has a diameter of about 8.8 x 10 4 miles. Mercury has a diameter of about 3.0 x 10 3. What is the difference in their diameters? A 9.1 x 10 4 B 2.64 x 10 8 C 8.5 x 10 4 D 2.93 x 10 1 5. There are a LOT of lakes in the mid-state area. The level of Lookout Lake is 4.056 x 10 5 feet above sea level. The level of Lockdown Lake is only 3.85 x 10 4 feet above sea level. How much higher in altitude is Lookout Lake than Lockdown Lake? A 3.671 x 10 5 B 4.441 x 10 5 C 1.56 x 10 10 D 1.0535 x 10
6. In 2009 there were 2.35 x 10 6 ferrets kept as pets in India. At the same time there were 3.43 x 10 5 ferrets kept as pets in France. How many pet ferrets were in there in total in those two countries? A 2.007 x 10 6 B 8.0605 x 10 11 C 6.85 x 10 0 D 2.693 x 10 6 7. A very small but volatile bacteria takes up 1.78 x 10-2 square inches of space on the rail of a front porch. A worker cleaning the rail sprays 3.45 x 10 3 square inches of bleach cleaner over the bacteria area. How much more space did the cleaning spray encompass than the bacteria? A 3.45 x 10 2 B 3.4499822 x 10 3 C 6.141 x 10 D 5.159 x 10-6 8. Bubba and Fred are having a bubble-blowing contest. The diameter of Bubba s bubble is 2.45 x 10-2 feet. Fred s bubble is 3.67 x 10-2 feet. What is the difference in the diameter of their bubbles? A 6.17 x 10-2 B 8.9915 x 10-4 C 1.22 x 10-2 D 1.468 x 10 0 9. The biggest bowl of mashed potatoes ever made weighed 4.56 x 10 4 pounds and was created at the Iowa State Fair in 2005. The biggest deep dish pizza ever made was in Chicago in 1998. It weighed a whopping 1.23 x 10 5 pounds. How much more did the pizza weigh than the bowl of mashed taters? A 7.74 x 10 5 B 1.686 x 10 5 C 5.6088 x 10 9 D 3.7073 x 10-1 10. An ant carries a spec of food to his home that is 2.34x10-3 inches. His wife carries a piece that is 4.56x10-2. How big are their pieces of food combined? A 4.326 x 10-2 B 1.06704 x 10-4 C 1.948 x 10 D 4.794 x 10-2
Scientific Notation - Adding and Subtracting Practice for Color by Number 1. Bubba s Boot Barn is a favorite stop of visitors to Nashville s downtown shopping area. Last year, 2.42 x 10 5 people visited Bubba s. This year it has become an even more popular venue, with 2.53 x 10 6 visitors. How many more visitors have been to Bubba s this year than last year? Then color all #1 areas 2.75 x 10 6 Light blue 2.288 x 10 6 Baby pink 6.1226 x 10 11 Gray 9.5652 x 10-2 Tan 2. Jilly Johnson is a fantastic jelly-band bracelet maker. Jilly used 3.73 x 10 3 bands last month and this month she used 2.87 x 10 3 bands. How many total bands has she used in the past months? Then color all #2 areas 6.6 x 10 3 Light bright green 8.6 x 10 2 Dark green 1.07051 x 10 7 Yellow 1.29965 x 10 0 Pink 3. 4.78 x 10 6 was the largest attendance record of the Polar Bear Express Chilly Football Extravaganza. 3.98 x 10 6 attended at the last PB Express event. How many more people were in attendance on the record-setting day? Then color all #3 areas 8.76 x 10 6 Light purple 1.90244 x 10 13 Orange 8 x 10 4 Yellow 8 x 10 5 Light blue 4. Jupiter, the largest planet, has a diameter of about 8.8 x 10 4 miles. Mercury has a diameter of about 3.0 x 10 3. What is the difference in their diameters? Then color all #4 areas 9.1 x 10 4 Orange 2.64 x 10 8 Red 8.5 x 10 4 Bright yellow 2.93 x 10 1 Orangey-yellow 5. There are a LOT of lakes in the mid-state area. The level of Lookout Lake is 4.056 x 10 5 feet above sea level. The level of Lockdown Lake is only 3.85 x 10 4 feet above sea level. How much higher in altitude is Lookout Lake than Lockdown Lake? Then color all #5 areas 3.671 x 10 5 Orangey-yellow 4.441 x 10 5 Yellow 1.56 x 10 10 Red 1.0535 x 10 Pink 6. In 2009 there were 2.35 x 10 6 ferrets kept as pets in India. At the same time there were 3.43 x 10 5 ferrets kept as pets in France. How many pet ferrets were in there in total in those two countries?
Then color all #6 areas 2.007 x 10 6 Yellow 8.0605 x 10 11 Orangey-yellow 6.85 x 10 0 Red 2.693 x 10 6 Orange 7. A very small but volatile bacteria takes up 1.78 x 10-2 square inches of space on the rail of a front porch. A worker cleaning the rail sprays 3.45 x 10 3 square inches of bleach cleaner over the bacteria area. How much more space did the cleaning spray encompass than the bacteria? Then color all #7 areas 3.45 x 10 2 Orange 3.4499822 x 10 3 Red 6.141 x 10 Yellow 5.159 x 10-6 Hot pink 8. Bubba and Fred are having a bubble-blowing contest. The diameter of Bubba s bubble is 2.45 x 10-2 feet. Fred s bubble is 3.67 x 10-2 feet. What is the difference in the diameter of their bubbles? Then color all #8 areas 6.17 x 10-2 Baby pink 8.9915 x 10-4 Light bright green 1.22 x 10-2 Violet 1.468 x 10 0 Tan 9. The biggest bowl of mashed potatoes ever made weighed 4.56 x 10 4 pounds and was created at the Iowa State Fair in 2005. The biggest deep dish pizza ever made was in Chicago in 1998. It weighed a whopping 1.23 x 10 5 pounds. How much more did the pizza weigh than the bowl of mashed taters? Then color all #9 areas 7.74 x 10 5 Bright blue 1.686 x 10 5 Dark blue 5.6088 x 10 9 Violet 3.7073 x 10-1 Gray 10. An ant carries a spec of food to his home that is 2.34x10-3 inches. His wife carries a piece that is 4.56x10-2. How big are their pieces of food combined? Then color all #10 areas 4.326 x 10-2 Brown 1.06704 x 10-4 red 1.948 x 10 Tan 4.794 x 10-2 Gray
Scientific Notation - Adding and Subtracting Practice for Color by Number SOLUTIONS! 1. Bubba s Boot Barn is a favorite stop of visitors to Nashville s downtown shopping area. Last year, 2.42 x 10 5 people visited Bubba s. This year it has become an even more popular venue, with 2.53 x 10 6 visitors. How many more visitors have been to Bubba s this year than last year? Then color all #1 areas 2.288 x 10 6 Baby pink 2. Jilly Johnson is a fantastic jelly-band bracelet maker. Jilly used 3.73 x 10 3 bands last month and this month she used 2.87 x 10 3 bands. How many total bands has she used in the past months? Then color all #2 areas 6.6 x 10 3 Light green 3. 4.78 x 10 6 was the largest attendance record of the Polar Bear Express Chilly Football Extravaganza. 3.98 x 10 6 attended at the last PB Express event. How many more people were in attendance on the record-setting day? Then color all #3 areas 8 x 10 5 Light blue 4. Jupiter, the largest planet, has a diameter of about 8.8 x 10 4 miles. Mercury has a diameter of about 3.0 x 10 3. What is the difference in their diameters? Then color all #4 areas 8.5 x 10 4 Bright yellow 5. There are a LOT of lakes in the mid-state area. The level of Lookout Lake is 4.056 x 10 5 feet above sea level. The level of Lockdown Lake is only 3.85 x 10 4 feet above sea level. How much higher in altitude is Lookout Lake than Lockdown Lake? Then color all #5 areas 3.671 x 10 5 Orangey-yellow
6. In 2009 there were 2.35 x 10 6 ferrets kept as pets in India. At the same time there were 3.43 x 10 5 ferrets kept as pets in France. How many pet ferrets were in there in total in those two countries? Then color all #6 areas 2.693 x 10 6 Orange 7. A very small but volatile bacteria takes up 1.78 x 10-2 square inches of space on the rail of a front porch. A worker cleaning the rail sprays 3.45 x 10 3 square inches of bleach cleaner over the bacteria area. How much more space did the cleaning spray encompass than the bacteria? Then color all #7 areas 3.4499822 x 10 3 red 8. Bubba and Fred are having a bubble-blowing contest. The diameter of Bubba s bubble is 2.45 x 10-2 feet. Fred s bubble is 3.67 x 10-2 feet. What is the difference in the diameter of their bubbles? Then color all #8 areas 1.22 x 10-2 Violet 9. The biggest bowl of mashed potatoes ever made weighed 4.56 x 10 4 pounds and was created at the Iowa State Fair in 2005. The biggest deep dish pizza ever made was in Chicago in 1998. It weighed a whopping 1.23 x 10 5 pounds. How much more did the pizza weigh than the bowl of mashed taters? Then color all #9 areas 7.74 x 10 5 Bright blue 10. An ant carries a spec of food to his home that is 2.34x10-3 inches. His wife carries a piece that is 4.56x10-2. How big are their pieces of food combined? Then color all #10 areas 4.794 x 10-2 gray
Solutions 1. Bubba s Boot Barn is a favorite stop of visitors to Nashville s downtown shopping area. Last year, 2.42 x 10 5 people visited Bubba s. This year it has become an even more popular venue, with 2.53 x 10 6 visitors. How many more visitors have been to Bubba s this year than last year? 2,288,000 = 2.288 x 10 6 2. Jilly Johnson is a fantastic jelly-band bracelet maker. Jilly used 3.73 x 10 3 bands last month and this month she used 2.87 x 10 3 bands. How many total bands has she used in the past months? 6,600 = 6.6 x 10 3 3. 4.78 x 10 6 was the largest attendance record of the Polar Bear Express Chilly Football Extravaganza. 3.98 x 10 6 attended at the last PB Express event. How many more people were in attendance on the record-setting day? 800,000 = 8 x 10 5 4. Jupiter, the largest planet, has a diameter of about 8.8 x 10 4 miles. Mercury has a diameter of about 3.0 x 10 3. What is the difference in their diameters? 85,000 = 8.5 x 10 4 5. There are a LOT of lakes in the mid-state area. The level of Lookout Lake is 4.056 x 10 5 feet above sea level. The level of Lockdown Lake is only 3.85 x 10 4 feet above sea level. How much higher in altitude is Lookout Lake than Lockdown Lake? 367,100 = 3.671 x 10 5 6. In 2009 there were 2.35 x 10 6 ferrets kept as pets in India. At the same time there were 3.43 x 10 5 ferrets kept as pets in France. How many pet ferrets were in there in total in those two countries? 2,693,000 = 2.693 x 10 6 7. A very small but volatile bacteria takes up 1.78 x 10-2 square inches of space on the rail of a front porch. A worker cleaning the rail sprays 3.45 x 10 3 square inches of bleach cleaner over the bacteria area. How much more space did the cleaning spray encompass than the bacteria? 3,449.9822 = 3.4499822 x 10 3 8. Bubba and Fred are having a bubble-blowing contest. The diameter of Bubba s bubble is 2.45 x 10-2 feet. Fred s bubble is 3.67 x 10-2 feet. What is the difference in the diameter of their bubbles?.0122 = 1.22 x 10-2 9. The biggest bowl of mashed potatoes ever made weighed 4.56 x 10 4 pounds and was created at the Iowa State Fair in 2005. The biggest deep dish pizza ever made was in Chicago in 1998. It weighed a whopping 1.23 x 10 5 pounds. How much more did the pizza weigh than the bowl of mashed taters? 77,400 = 7.74 x 10 5 10. An ant carries a spec of food to his home that is 2.34x10-3 inches. His wife carries a piece that is 4.56x10-2. How big are their pieces of food combined? 0.04794 = 4.794 x 10-2
Solutions 1. (5.2 x 10 4 ) + (2.5 x 10 3 ) = 2500.00052 = 2.50000052 x 10 3 2. (1.8 x 10 6 ) (7.5 x 10 2 ) = 1799250 = 1.79925 x 10 6 3. (2.7 x 10 2 ) + (3.2 x 10 4 ) = 322,700 = 3.227 x 10 4 4. (8.5 x 10 3 ) (2.5 x 10-2 ) = 8499.975 = 8.499975 x 10 3 5. (4.84 x 10-11 ) (8.8 x 10 4 ) = -88000 = -8.8 x 10 4 6. (2.2 x 10 2 ) + (6.52 x 10 3 ) = 6740 = 6.74 x 10 3 7. (8.9 x 10-7 ) + (3.2 x 10 17 ) = 3.2 x 10 17 8. (1.2 x 10 9 ) (7.77 x 10 12 ) = -7.7688 x 10 12 9. (6.4 x 10-3 ) (2.5 x 10 3 ) = -2499.9936 = -2.4999936 x 10 3 10. (4.3 x 10-4 ) + (3.6 x 10-3 ) =.00403 = 4.03 x 10-3 11. (2.89 x 10 2 ) (3.4 x 10-2 ) = 288.966 = 2.88 x 10 2 12. (2.07 x 10-2 ) + (8.98 x 10-3 ) =.02968 = 2.968 x 10-2 13. (2.5 x 10 9 ) (8.04 x 10-2 ) = 2500000000 = 2.5 x 10 9 14. (2 x 10-3 ) (9.8 x 10-6 ) =.0019902 = 1.9902 x 10-3 15. (5.38 x 10-4 ) + (5.83 x 10-4 ) =.001121 = 1.121 x 10-3 16. (6.07 x 10-2 ) + (3.305 x 10-3 ) =.064005 = 6.4005 x 10-2 17. (1.2 x 10 9 ) (1.2 x 10 8 ) = 1080000000 = 1.08 x 10 9 18. (9.76 x 10 14 ) + (8.07 x 10 10 ) = 9.760807 x 10 14 19. (2.795 X 10 9 ) + (3.84 X 10 8 ) = 3179000000 = 3.179 x 10 9 20. (6.995 X 10 6 ) (6.378 X 10 4 ) = 6931220 = 6.93122 x 10 6
1. (5.2 x 10 4 ) + (2.5 x 10 3 ) = 3. (2.7 x 10 2 ) + (3.2 x 10 4 ) = 5. (4.84 x 10-11 ) (8.8 x 10 4 ) = 7. (8.9 x 10-7 ) + (3.2 x 10 17 ) = 9. (6.4 x 10-3 ) (2.5 x 10 3 ) = 11. (2.89 x 10 2 ) (3.4 x 10-2 ) = 13. (2.5 x 10 9 ) (8.04 x 10-2 ) = 15. (5.38 x 10-4 ) + (5.83 x 10-4 ) = 17. (1.2 x 10 9 ) (1.2 x 10 8 ) = 19. (2.795 X 10 9 ) + (3.84 X 10 8 ) = 2. (1.8 x 10 6 ) (7.5 x 10 2 ) = 4. (8.5 x 10 3 ) (2.5 x 10-2 ) = 6. (2.2 x 10 2 ) + (6.52 x 10 3 ) = 8. (1.2 x 10 9 ) (7.77 x 10 12 ) = 10. (4.3 x 10-4 ) + (3.6 x 10-3 ) = 12. (2.07 x 10-2 ) + (8.98 x 10-3 ) = 14. (2 x 10-3 ) (9.8 x 10-6 ) = 16. (6.07 x 10-2 ) + (3.305 x 10-3 )= 18. (9.76 x 10 14 ) + (8.07 x 10 10 ) = 20. (6.995 X 10 6 ) (6.378 X 10 4 )=
1.Bubba s Boot Barn is a favorite stop of visitors to Nashville s downtown shopping area. Last year, 2.42 x 10 5 people visited Bubba s. This year it has become an even more popular venue, with 2.53 x 10 6 visitors. How many more visitors have been to Bubba s this year than last year? 2. Jilly Johnson is a fantastic jelly-band bracelet maker. Jilly used 3.73 x 10 3 bands last month and this month she used 2.87 x 10 3 bands. How many total bands has she used in the past months?
3. 4.78 x 10 6 was the largest attendance record of the Polar Bear Express Chilly Football Extravaganza. 3.98 x 10 6 attended at the last PB Express event. How many more people were in attendance on the recordsetting day? 4. Jupiter, the largest planet, has a diameter of about 8.8 x 10 4 miles. Mercury has a diameter of about 3.0 x 10 3. What is the difference in their diameters?
5. There are a LOT of lakes in the mid-state area. The level of Lookout Lake is 4.056 x 10 5 feet above sea level. The level of Lockdown Lake is only 3.85 x 10 4 feet above sea level. How much higher in altitude is Lookout Lake than Lockdown Lake? 6. In 2009 there were 2.35 x 10 6 ferrets kept as pets in India. At the same time there were 3.43 x 10 5 ferrets kept as pets in France. How many pet ferrets were in there in total in those two countries?
7. A very small but volatile bacteria takes up 1.78 x 10-2 square inches of space on the rail of a front porch. A worker cleaning the rail sprays 3.45 x 10 3 square inches of bleach cleaner over the bacteria area. How much more space did the cleaning spray encompass than the bacteria? 8. Bubba and Fred are having a bubble-blowing contest. The diameter of Bubba s bubble is 2.45 x 10-2 feet. Fred s bubble is 3.67 x 10-2 feet. What is the difference in the diameter of their bubbles?
9. The biggest bowl of mashed potatoes ever made weighed 4.56 x 10 4 pounds and was created at the Iowa State Fair in 2005. The biggest deep dish pizza ever made was in Chicago in 1998. It weighed a whopping 1.23 x 10 5 pounds. How much more did the pizza weigh than the bowl of mashed taters? 10. An ant carries a spec of food to his home that is 2.34x10-3 inches. His wife carries a piece that is 4.56x10-2. How big are their pieces of food combined?
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